view.java.svn-base

开发框架。 一.说明： 此框架的意图是解决手机软件开发中常遇到

package org.gggeye.easymf.ui;

import java.util.Hashtable;

import javax.microedition.lcdui.Font;



/**
 * 所有可视对象的超类。
 * @author wuhua
 * <a href="http://wuhua.3geye.net">我的博客</a>
 *
 */
public abstract class View {
	protected int top; //x
	protected int left; //y
	protected int right;
	protected int buttom;

	protected int width;
	protected int height;

	byte type; //q

	Hashtable attr;

	public  String name;
	protected String id;
	protected String action;
	protected String value;
	protected String[] values;
	protected String alt;
	protected Font font = Panel.defaultFont;

	protected int fontColor;
	protected int backColor;

	protected int index; // 控件在文档中的索引
	protected boolean hasFocus;

	//每一个元素都有一个连接
	protected HyperLink hyperLink;

	EventListener eventListener;
	HtmlDocument htmlDocument;

	public View() {
		
	}

	public void setTopPostion(int _height) {
		this.top += _height;
		this.buttom = top + height;
	}

	//  Event event; //绑定事件
	View(int fontColor, int backColor, Font font) {
		this.fontColor = fontColor;
		this.backColor = backColor;
		this.font = font == null ? Panel.defaultFont : font;
	}

	void doClick(int _keyCode) {
		//if (_keyCode == 8) {
		if (eventListener != null)
			eventListener.viewDoClick(_keyCode, this);
		//}
		this.subDoClick(_keyCode);
	}
	
	/**
	 * 需要传递事件到子对象的实现这个方法
	 * @param _keyCode
	 */
	void subDoClick(int _keyCode){
		
	}

	public abstract void doPaint(Pen _pen, HtmlDocument _document);

	/**
	 * 判读此控件是否在屏幕范围内
	 * @param x int
	 * @param y int
	 * @return boolean
	 */
	boolean onSreenContent(byte _type, int _top, int _buttom) {
		if (_type == Container.VIEW_MOVE_DOWN && top > _buttom - 10) {
			return false;
		} else if (_type == Container.VIEW_MOVE_UP
				&& top < _top - this.height) {
			return false;
		} else
			return true;
 
	}

	boolean inSreenContent(byte _type, int _top, int _buttom) {
		if (_type == Container.VIEW_MOVE_DOWN && top > _top) {
			return true;
		} else if (_type == Container.VIEW_MOVE_UP && _buttom > top + width)
			return true;
		else
			return false;
	}

	boolean nearScreenContent(int _top, int _buttom) {
		if (_top > top - 40 || _buttom < this.buttom - 40) {
			return false;
		}
		return true;
	}

	public final void addHyperLink(HyperLink _hyperLink) {
		this.hyperLink = _hyperLink;
		this.hasFocus = hyperLink != null;
	}

	public   int getIndex() {
		return this.index;
	}
	
	public   String getName() {
		return this.name;
	}


}